Creates a GtkPopoverMenu and populates it according to @model.
The created buttons are connected to actions found in the
GtkApplicationWindow to which the popover belongs - typically
by means of being attached to a widget that is contained within
the GtkApplicationWindows widget hierarchy.
Actions can also be added using [method@Gtk.Widget.insert_action_group]
on the menus attach widget or on any of its parent widgets.
This function creates menus with sliding submenus.
See [ctor@Gtk.PopoverMenu.new_from_model_full] for a way
to control this.
Creates a GtkPopoverMenu and populates it according to @model.
The created buttons are connected to actions found in the GtkApplicationWindow to which the popover belongs - typically by means of being attached to a widget that is contained within the GtkApplicationWindows widget hierarchy.
Actions can also be added using [method@Gtk.Widget.insert_action_group] on the menus attach widget or on any of its parent widgets.
This function creates menus with sliding submenus. See [ctor@Gtk.PopoverMenu.new_from_model_full] for a way to control this.